AS-A AS-B
-+--------+-- -+-----------
| | |
| | |
X bgpA1 X bgpA2 X bgpB1
_+________+______ _+___________
Housing A ----+---- Housing B
| GigE
|
X bgpC1 and bgpC2
______+_______
Housing C
It's only a small network setup. Housing C is the source and destination of
almost all traffic to AS-C. The BGP-routers A1, A2, B1, C1 and C2 are all
part of AS-C and directly linked via iBGP. bgpB1 is only peering to AS-B and
backup upstream. bgpA1 and A2 are the main upstream peering points.
bgpC1 is main router, bgpC2 is backup router @ Housing C running OpenBSD.
I though setting Multipath for the incoming routes from bgpA1 and A2 on
bgpC1 and C2 would be a kind feature for testing.
-Florian
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
Tony Sarendal
Sent: Saturday, November 03, 2007 2:31 PM
To: misc@openbsd.org
Subject: Re: multipath routing with OpenBGPD
On 11/3/07, Florian Fuessl <[EMAIL PROTECTED]> wrote:
>
> Hi Gregory,
>
> we have multiple redundant FE upstream peerings to the same AS. So I guess
> the best solution would be in our case to let the upstream provider assign
> different community flags for packets passing each FE line which we can
> use
> for outgoing route preference decisions.
>
> Other ideas are welcome ;-)
I hope you mean communites on prefixes, and even in that case what can the
provider do that you can't ?
What does your topology look like ?
/Tony
